OX45M3F – Optimax MK3 Flex 26.6 mm sprit Optimist
A light and flexible racing sprit. The MK3 Flex 26.6 mm sprit for the Optimist is suitable for sailors under 35 kg.
- Superior Lanurep spacecraft alloy
- Anodized to a dark grey color
- Grey glass fibre filled Nylon sprit ends
- 15 cm heat shrinkable sprit protection tubing,
prevents wear between mast and sprit

Related products
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OX35M3 – Optimax MK3 40 mm boom Optimist
A light and flexible allround boom which can be used with all masts and sprits. The MK3 40 mm boom for the Optimist is suitable for sailors from 35 to 45 kg.
- High grade alloy, dark grey anodized
- Glass fibre filled nylon in- and outboard end fittings
- Glass fibre filled nylon V-shaped outhaul cleat
- Glass fibre filled nylon lacing eyes
- Fitted with outhaul trim strip
- 3 mm Dyneema boom preventer line
- 3 mm Dyneema / Cordura outhaul line
- 3 mm Dyneema bridle with stainless steel ring
- 3 mm Dyneema primary vang line
- 6 mm Dyneema / Cordura secondary vang line
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OX25AB4 – Optimax MK4 mast Optimist
The most stiff and powerfull mast, designed for experienced, heavier weight sailors. The MK4 mast for the Optimist is suitable for sailors from 45 kg.
- Superior Lanurep spacecraft alloy
- High grade 45 um hard anodized surface
- Windesign wind indicator PRO
- Pennant holders
- Harken hook-in block
- 3 mm Dyneema primary halyard line with Windesign low friction ring
- Technora / Dyneema secondary halyard line
- Hard anodized aluminium Clamcleat
- Aluminium pin stop
- Sprit adjuster handle
- Low friction end stop
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OX234M3 – Optimax MK3 spar set Optimist
MK3 spar set for the Optimist. Suitable for sailors from 35 to 45 kg
Material: Superior Lanurep spacecraft alloy
Anodized: Top grade hard dark grey- MK3 mast (OX25AB3)
- MK3 40 mm boom (OX35M3
- MK3 27 mm sprit (OX45M3)
Supplied with rigging pack (OX25):
1 x Harken ball bearing hook-in block
1 x Windesign 25 mm low friction ring
1 x Windesign wind indicator PRO
1 x Deck collar with mast sleeve
1 x Nylon sprit adjuster handle
2 x Nylon top pins
1 x Dyneema primary halyard line
1 x Technora / Dyneema secondary halyard line
5 x 2.2 mm tack lines
12 x 1.2 mm double lacing lines -
OX25AB3M – Optimax MK3 Medium mast Optimist
The newest mast in the Optimax range. The MK3 MEDIUM mast fits perfectly in our existing mast range and is 8% more flexible compared to the MK3 mast and 8% stiffer compared to the MK3 Flex mast. The MK3 MEDIUM mast for the Optimist is suitable for sailors from 30 to 40 kg.
- Superior Lanurep spacecraft alloy
- High grade 45 um hard anodized surface
- Windesign wind indicator PRO
- Pennant holders
- Harken hook-in block
- 3 mm Dyneema primary halyard line with Windesign low friction ring
- Technora / Dyneema secondary halyard line
- Hard anodized aluminium Clamcleat
- Aluminium pin stop
- Sprit adjuster handle
- Low friction end stop